Eyeglasses



A. J. LANDR-Y;

EYEGLASSE'S.

No. 493,169. Patented Mar. '7, 1893;

Nrrr, S'rn'rns PATENT ADOLPHUS J. LANDRY, OF SOMERVILLE, MASSACHUSETTS.

EY'EcLAssEs.

SPECIFICATION forming part of Letters Patent No. 493,169, dated March '7, 1893. Application filed December 19I 1892. .Serial No.455,692. (No model.)

To all 1071/0717/ it may concern:

Be it known that I, ADoLPHUsJ. LANDRY, a citizen of the United States, residing at Sonierville, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Eyeglasses, of which the following is a full, clear, and exact description, reference being had to the acoompanying drawings, making part of this specification, in which- Figure 1 is a front view of a pair of eyeglasses embodying my invention. Fig. 2 is a Section on the line x of Fig. 1, showing the inner end of one of the lenses and the parts connected therewith. Fig. 3 is an enlarged Vertical section through one of the lens-posts and parts connected therewith on the line y. y. of Fig. 2. Fig. 4 is a perspective viewillustrating the construction of the looking device by which the screw which holds the bowspring and nose-guard to the lens post, is prevented from turning when in place. Fig. 5 is a view of the looking plate detached. Fig. 6 is a view illustrating a modification to be referred to. Fig. 7 is a view of the looking plate shown in Fig. 6. i

In eyeglasses of ordinary construction, the screws by which the ends of the lens-connecting how-spring and the nose-guards are secured to the lens-posts frequently become loosened and fall out; much inconvenience and annoyance being thereby occasioned to the wearer of the glasses.

To obviate this difficulty is the object of my invention, which consists in providing the screw by which the how-spring or other device for connecting the lenses or lens frames, and the nose-guards, or either of them are secured to the lens-post, with a polygonal head, and combining therewith a looking plate secured to an adjacent portion of the eyeglass, and provided with a slot or aperture shaped to fit said screw head, over which itis placed to preventthe screw from turning, as hereinafter more particularly set forth.

In the said drawings, A, A, represent the lenses of an eyeglass, to which are secured in the usual manner the lens-posts or studs B, B, which are channeled at their outerends or provided with side fianges a, a, between which the extremities of the connecting bow-sprin g and the nose-guard arm 10 by the screw b, p

which passes therethrough. plate is provided vwith an aperture g shaped to fit the head 15 of the screw b, and after said screw has been turned into place the looking plate is bent down over the head 15, as shown in Figs. 1, 2, 3, and 4, thereby looking the screw b and effectually preventing it from becoming loose and dropping out as heretofore liable to occur, whereby much'inconvenience and annoyance are avoided, especially in cases where opportunities for repairs are not at hand.

In Fig. 6 is represented a modification of my invention, in which the looking plate f, instead of being olamped between the end of thelbow-spring O and the arm 10 of the noseguard, is provided with lateral arms 20 at its upper end, whichv are adapted to be bent around the how-spring C immediately above the lens-post, as shown, or around any other convenient adjacent port-ion of the eyeglass, whereby said looking plate after being placed over the head of the screw, is securely held in place as required.

It is obvious that mylocking plates may be used in connection with the screws b in cases where the nose-guards are dispensed with, or where said screws b are employed for securin g to the lens-posts any suitable device or means for conneoting the lenses or lens-frames, or wherever screws are employed for connecting different portions of an eyeglass frame.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In eyeglasses, the combination, with the lens-post, a connecting device for the lenses, and the fastening screw, the latter having a polygonal head, of a looking-plate secured to an adjacent portion of the eyeglass and having an aperture or slot shaped to fit said screw head; said looking plate being placed This looking thereover to prevent the screw from turning or becorning loose, substantially as set forth.

2. In eyeglasses, the combination, with the lens-post, the how-spring, and the screw for secnring said spring' to the lens-post, said screw having a polygonal head, of the looking-platesecured to an adjacent portion of the eyeglass and having a slot or aperture shaped to fit said screw head and adapted to be placed thereovel`` after the'screw has been turned into place, substantially as and for the purpose specified.

3. In eyeglasses, the combination, with the lens-post, the how-spring, the nose-gnard, and the screw for securing said spring and nose-guard to the lens-post, said screw having a polygonal head, of the looking plate f se` cured to an adjacent portion of the eyeglass and having a slot or apertui'e g shaped to fit said scl'ew-head and adapted to be placed VVitness my hand this 14th day of December, A. D. 1892.

ADOLPIIUS J. LANDRY. In presence of- P. E. TESGHEMAOHER, HARRY W. AIKEN. 

